Patent Assignment
Reel/Frame 003925/0020
Assignment of Assignors Interest.
Recorded: 1981-11-09
Pages: 1
Assignee
ETHYL CORPORATION, A CORP. OF VA.
RICHMOND, VIRGINIA
Covered Property
(1)
Process for Producing Perforated Film
Patent:
4,317,792 →
Application:
06/141,326 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.